[time-nuts] state of the art divide by ten - UPDATE

Bill Janssen billj at ieee.org
Mon Mar 30 15:42:41 UTC 2009


David C. Partridge wrote:
> I don't have any more PCBs left for the frequency divider I did last year,
> but if there's enough interest, I can get another batch made up.  All
> outputs re-clocked to input using FF before final line driver stage.
>
> Cheers
> Dave
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Bill Janssen
> Sent: 30 March 2009 04:29
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] state of the art devide by ten
>
> I want to construct a divide by ten or a divide by 100 frequency divider.
> This is to take my 10 MHz. from my Rubidium to 1 MHz. or 100 KHz.
> I could use the spare 74xx90 chips ( which I have) but I would like to make
> some thing useful for future uses. What would be a "through the hole" type
> of IC that would have less jitter than a 74xx90. I CAN do surface mount if I
> have to.
>
> Thanks
> Bill K7NOM
 From the comments I think I will use the 74xx90 and the 74xx74. That 
will do for my
immediate needs. But I would sure like to get a couple of David's 
boards. One for my Rubidium
and one for my Thunderbolt. My Austrons Crystal Standards are good as 
they are.

Thanks for the education.
Bill K7NOM



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